CLEANING AND
MAINTENANCE
Continued
2.Inspect burner, pilot, and primary air inlet holes on injector holder for dust and dirt (see Figure 41).
3.Blow air through the ports/slots and holes in the burner.
4.Check the injector holder located at the end of the burner tube again. Remove any large particles of dust, dirt, lint, or pet hair with a soft cloth or vacuum cleaner nozzle.
5.Blow air into the primary air holes on the in- jector holder.
6.In case any large clumps of dust have now been pushed into the burner repeat steps 3 and 4.
Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot as- sembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 42). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if com- pressed air is not available.
LOGS
•If you remove logs for cleaning, refer to In- stalling Logs, page 16, to properly replace logs.
•Replace log(s) if broken or chipped
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the holes in the fitting at the burner entrance. These holes may become blocked with dust or lint. Periodically in-
Burner Tube
Injector Holder (May Be Brass or Aluminum Depending on 
Model)
spect these holes for any blockage and clean if needed. Blocked air holes will create soot.
WIRING DIAGRAMS
Note: For proper operation of optional accessories, the wires from the switch to the control must be connected exactly as shown in Figures 43 and 44.
Primary Air Inlet Holes (Shape of Holes May Vary by Model)
Figure 41 - Injector Holder On Outlet
Burner Tube
Ports/Slots
Burner
Tube
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dan- gerous operation. Verify proper operation after servicing.
AUTO
OFF
ON
Thermopile
Pilot |
| Figure 43 - Switch Wiring Diagram | ||
Assembly |
| |||
|
|
|
| |
|
|
| Variable | Fan Switch |
|
| Fan Switch | ||
| Pilot Air |
|
| (N.O.) |
| Off | 1 |
| |
| Inlet Hole |
| ||
|
| 2 Black |
| |
|
|
| On | Blue |
|
|
|
| |
|
|
|
| Red |
|
| 110/115 |
|
|
|
| V.A.C. |
|
|
|
| Black |
|
|
|
| Green |
| Blower |
|
| White |
| Motor |
Figure 42 - Pilot Inlet Air Hole
Figure 44 - Blower Wiring Diagram
24 | www.desatech.com |
